Diesel-driven oil-free screw air compressor

Abstract

The diesel-driven oil-free screw air compressor comprises an air compression and power system, an air inlet silencing cavity, a heat dissipation assembly, a box body and a control system, the control system is arranged on the box body and electrically connected with the air compression and power system, and the box body comprises a left side heat dissipation cabin, a main cabin and a right side heat dissipation cabin which are sequentially arranged; the air compression and power system is arranged in the main cabin and comprises a diesel-driven engine, an air compressor main machine, a first coupler, an air inlet valve and an air filter assembly, the diesel-driven engine and the air compressor main machine are connected through the first coupler, and a connecting disc is arranged at the connecting position; the air filter assembly is connected with the diesel-driven engine and the air compressor host through pipelines, the air inlet valve is arranged on the pipeline between the air compressor host and the air filter assembly, and the other end of the air filter assembly is connected with the air inlet silencing chamber in the right heat dissipation cabin; the heat dissipation assembly is arranged in the left side heat dissipation cabin and the right side heat dissipation cabin.

Description

Technical Field

[0001] The invention relates to the technical field of air compressors, and in particular to a diesel-driven oil-free screw air compressor. Background Art

[0002] An air compressor is a mechanical device that uses compressed air to increase air pressure or transmit gas. It is mainly used in chemical and industrial industries such as petroleum refining, LNG, electronic chips, and air separation. According to the working principle, it is mainly divided into: screw air compressors, piston air compressors, centrifugal air compressors and scroll compressors. According to heat dissipation, it is divided into: water cooling and air cooling. According to drive, it is divided into: electric drive and diesel drive.

[0003] Mobile diesel direct-drive oil-free screw air compressors are generally used outdoors, at project sites, where the external environment is complex, with high temperatures, low temperatures, heavy rain, dust and other harsh environments. This places extremely high demands on the overall performance and spatial layout of the air compressor, which needs to be able to control the temperature in the cabin extremely well, be rainproof and dustproof, and also have the characteristics of integration and easy hoisting or mobility.

[0004] At present, the air intake and heat dissipation layout of most air compressors are adopted at one end of the equipment, entering the air filter through the pipeline to the exhaust component at the other end of the equipment. The radiator is relatively concentrated together, and the pipelines are staggered, resulting in a small space in the cabin, and the cabin is not sealed, which will cause excessive noise, and the cabin will be dirty and messy when the equipment is working for a long time. In addition, the air intake of the equipment passes through the air intake silencer chamber, enters the cabin, and is finally discharged. When the air enters the cabin, it is affected by the temperature in the cabin, and the temperature rise phenomenon will occur. After the temperature rise, the air enters the heat exchanger, which will seriously affect the heat dissipation effect of the heat exchanger. Summary of the invention

[0005] The purpose of the present invention is to solve the problems raised in the above background technology, and then propose a diesel-driven oil-free screw air compressor. The device disclosed in the present invention is provided with a left heat dissipation compartment and a right heat dissipation compartment, which not only ensures the air intake of the air compressor and the diesel-driven engine, but also meets the heat dissipation and air intake requirements of the main compartment and the heat dissipation and air intake requirements of the heat dissipation components. The three compartments are isolated and arranged, so that the device disclosed in the present invention is suitable for harsh outdoor environments and is convenient for equipment maintenance.

[0006] The technical solution adopted by the present invention to solve the technical problem is:

[0007] A diesel-driven oil-free screw air compressor comprises an air compression and power system, an air intake silencing chamber, a heat dissipation assembly box and a control system. The control system is arranged on the box and electrically connected to the air compression and power system. The box comprises a left heat dissipation compartment, a main compartment and a right heat dissipation compartment arranged in sequence; the air compression and power system is arranged in the main compartment, the air compression and power system comprises a diesel-driven engine, an air compressor main engine, a first coupling, an intake valve and an air filter assembly. The diesel-driven engine and the air compressor main engine are connected through the first coupling, and a connecting plate is arranged at the connection position. The air filter assembly is respectively connected to the diesel-driven engine and the air compressor main engine through pipelines, the intake valve is arranged on the pipeline between the air compressor main engine and the air filter assembly, and the other end of the air filter assembly is connected to the air intake silencing chamber in the right heat dissipation compartment to obtain natural state air from the outside; the heat dissipation assembly is arranged in the left heat dissipation compartment and the right heat dissipation compartment.

[0008] Preferably, the heat dissipation assembly includes a hydraulic motor, a fan, a fan bracket and a heat sink group. The hydraulic motor is fixed on the inner upper surface of the left heat dissipation compartment and the right heat dissipation compartment. The other side of the diesel-driven engine is connected to the plunger pump through a second coupling. The operation of the diesel-driven engine drives the plunger pump to work at the same time. The plunger pump is connected to the hydraulic oil tank through one end of an oil pipe and connected to the hydraulic motor at the other end. The plunger pump provides power for the hydraulic motor. The hydraulic motor is rotatably connected to the fan. The hydraulic motor is connected to the hydraulic oil tank through an oil pipe for oil return, and the hydraulic oil is used in a closed circulation. The fan bracket is fixed on the side walls of the left heat dissipation compartment and the right heat dissipation compartment. The fan is arranged on the fan bracket, and the heat sink assembly is vertically arranged on the front and rear sides of the fan.

[0009] Preferably, the heat sink group includes a first heat sink, a second heat sink, a third heat sink and a fourth heat sink, the first heat sink is arranged at the front of the left heat sink compartment, the first heat sink has two sets of heat sink sections, the first heat sink section is connected to the intake system of the diesel-driven engine, and the second heat sink section is connected to the hydraulic system of the air compressor main engine; the second heat sink is arranged at the rear of the left heat sink compartment, and the second heat sink is connected to the heat sink component of the diesel-driven engine through a pipeline; the fourth heat sink is arranged at the back of the right heat sink compartment, and the fourth heat sink is respectively connected to the air outlet end of the first compression zone and the air inlet end of the second compressor of the air compressor main engine through pipelines; the third heat sink is arranged at the front of the right heat sink compartment, and the third heat sink is connected to the air outlet end of the second compression zone of the air compressor main engine through a pipeline.

[0010] Preferably, the air intake silencer chamber comprises an air intake door plate, a column and a top frame, the air intake door plate is arranged on the front and back sides of the left heat dissipation compartment and the right heat dissipation compartment, and a shutter is arranged on the air intake door plate, and the impurities in the natural air can be initially filtered through the gauze built in the shutter, and a large amount of external air and the heat sink group are heat exchanged at the same time, and the air is discharged from the top after the heat exchange, so as to achieve the effect of air cooling; the top frame is arranged above the air intake door plate, the top frame located in the left heat dissipation compartment is a frame structure, and an air channel is arranged in the top frame located in the right heat dissipation compartment; the column is arranged on one side of the door axis of the air intake door plate, the column located in the left heat dissipation compartment is a frame structure, and the column located in the right heat dissipation compartment is provided with an upper space channel and a lower space channel, the upper space channel is connected with the air channel of the upper top frame to supply air to the air filter assembly, and the lower space channel is directly connected with the internal space of the main compartment, and the main compartment is heat exchanged and cooled through air heat exchange, and the air channel of the upper top frame is provided with silencer cotton to reduce the working noise of the device.

[0011] Preferably, the air filter assembly comprises an air filter housing and an air filter element, an air filter inlet is arranged on the right vertical side plate of the air filter housing, a flange is arranged at the air filter inlet, a top frame air guide hole is arranged in the top frame located in the right heat dissipation compartment, the top frame air guide hole is connected with the air filter inlet through bolts and the flange, and air enters the air filter assembly through the shutter, the upper air channel of the column, the top frame air channel, the top frame air guide hole and the air filter inlet in sequence, two groups of air filter elements are respectively arranged on the two oblique sides above the air filter housing, a total of four groups of air filter elements, a quick-opening blind plate is arranged outside the air filter element, and an operator can quickly open the housing to clean or replace the filter element air, and a filtered gas collection chamber is arranged in the air filter housing, through The air filtered by the air filter is temporarily stored in the filtered gas collection chamber for use by the equipment. A first air outlet and a second air outlet are respectively arranged above the air filter housing. The first air outlet is connected to the diesel-driven engine through a pipeline to provide air for the operation of the diesel-driven engine. The second air outlet is connected to the intake valve through a pipeline to provide air to be compressed for the air compressor. An air pressure sensor is arranged in the air filter housing. The air pressure sensor is electrically connected to the control system. The air pressure sensor detects the air flow pressure inside the air filter assembly in real time. When the air filter is blocked, the information is fed back to the control system in time, so that the staff can replace or clean the air filter in time. Silence cotton is installed inside the air filter housing to reduce the working noise of the device.

[0012] Preferably, a partition is arranged between the left heat dissipation compartment, the main compartment and the right heat dissipation compartment, a silencer box is arranged in the partition, and air holes are arranged on both sides of the partition.

[0013] Preferably, a fuel tank assembly is arranged below the box body, and the fuel tank assembly is connected to the diesel-driven engine through an oil pipe. The fuel tank assembly comprises an upper fuel tank frame, a lower fuel tank frame and a fuel tank, and the fuel tank is arranged between the upper fuel tank frame and the lower fuel tank frame. A built-in refueling port and a built-in oil outlet and return port are arranged above the upper fuel tank frame, and the built-in refueling port is connected to the fuel tank through an oil pipe, one end of the built-in oil outlet and return port is connected to the fuel tank through an oil pipe, and the other end of the built-in oil outlet and return port is connected to the diesel-driven engine through an oil pipe.

[0014] Preferably, an external oil inlet and return port is arranged on the left side of the casing, the external oil inlet and return port is connected to the internal oil outlet and return port through an oil pipe, and a three-way valve is arranged at the connection position; an external refueling port is arranged on the front side of the casing, and the external refueling port is connected to the internal refueling port through an oil pipe.

[0015] Preferably, an equipment air outlet is arranged on the side of the box body, and the equipment air outlet is connected to the air outlet end of the third heat sink through a pipeline; an engine exhaust port is arranged on the top of the box body, and the engine exhaust port is connected to the diesel-driven engine.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The device disclosed in the present invention is provided with a left heat dissipation cabin and a right heat dissipation cabin, which ensures the air intake of the air compressor and the diesel-driven engine while also meeting the heat dissipation air intake requirements of the main cabin and the heat dissipation air intake requirements of the heat dissipation components. The three cabins are isolated and arranged, so that the device disclosed in the present invention is suitable for harsh outdoor environments and is convenient for equipment maintenance.

[0018] 2. The device disclosed in the present invention is provided with an air intake silencer chamber, wherein the shutters can block impurities such as catkins, large particles of gravel, etc. in the environment, and the maze passages in the columns and the top frame further isolate the impurities in the air and have a silencer effect at the same time. The various channels for conveying gas do not affect each other, and the gas is not affected by the working temperature in the cabin, thereby improving the stability and efficiency of the equipment operation.

[0019] 3. The device disclosed in the present invention adopts an air-cooled heat dissipation method by setting a heat dissipation component, which can adapt to project sites that do not have circulating water conditions. The fan speed is adjustable and can be adjusted based on extremely hot and extremely cold environments, ensuring that the equipment still has good performance in extreme environments.

[0020] 4. The device disclosed in the present invention can effectively remove dust, particulate matter and other impurities in the air by setting an air filter component, protect the interior of the compressor from pollutants, and extend the service life of the equipment.

[0021] 5. The device disclosed in the present invention dissipates heat for the diesel-driven engine and hydraulic oil, coolant, primary compressed air and secondary compressed air respectively by setting a heat sink group, thereby ensuring that each device does not affect each other and having an excellent heat dissipation and cooling effect.

[0022] 6. The device disclosed in the present invention divides the box into a left heat dissipation compartment, a main compartment and a right heat dissipation compartment by setting a partition, thereby avoiding the influence of the main compartment temperature on the efficiency of the radiators on both sides and greatly reducing the inlet and outlet temperatures at the secondary compression of the air compressor; at the same time, when the device is working, the main noise source of the equipment comes from the air compressor and the diesel engine, and the partition can greatly reduce the equipment noise.

[0023] 7. The oil tank assembly provided in the device disclosed in the present invention has two oil supply modes, one is oil supply from the oil tank, and the other is oil supply from an external oil inlet and return port, so that the device disclosed in the present invention is suitable for a variety of application scenarios.

[0024] 8. The device disclosed in the present invention adopts a symmetrical layout, which is convenient for device maintenance and repair and improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a rear cross-sectional view of the device disclosed in the present invention;

[0026] Figure 2 A top view of the device disclosed in the present invention;

[0027] Figure 3 It is a northeast isometric view of the device disclosed in the present invention;

[0028] Figure 4 It is a northwest isometric view of the device disclosed in the present invention;

[0029] Figure 5 It is a southeast isometric view of the device disclosed in the present invention;

[0030] Figure 6 This is a schematic diagram of the structure of the oil tank assembly of the device disclosed in the present invention;

[0031] Figure 7 It is a schematic diagram of the partition structure of the device disclosed in the present invention;

[0032] Figure 8 It is a schematic diagram of the structure of the air filter assembly of the device disclosed in the present invention;

[0033] Fig. 9 The figure is a top view of the air filter assembly of the device disclosed in the present invention.

[0034] Among them: 1. Box; 101. Main cabin; 102. Left cooling cabin; 103. Right cooling cabin; 2. Diesel engine; 3. Air compressor main engine; 4. Air filter assembly; 401. Air filter inlet; 402. Flange; 403. Air filter housing; 404. Quick-open blind plate; 405. Filter gas collection chamber; 406. Air pressure sensor; 407. First air outlet; 408. Second air outlet; 5. External refueling port; 6. Connecting plate; 7. First coupling; 8. Control system; 9. Partition; 901. Air vent; 902. Silencer box; 10. Intake silencer chamber; 1001. Intake door plate; 1002. Shutter; 10 03. Column; 1004. Top frame; 1005. Upper space channel; 1006. Top frame air guide hole; 1007. Lower space channel; 111. First heat sink; 112. Second heat sink; 113. Third heat sink; 114. Fourth heat sink; 12. Equipment air outlet; 13. Heat dissipation assembly; 131. Hydraulic motor; 132. Fan; 133. Fan bracket; 14. Engine exhaust port; 15. Fuel tank assembly; 151. Fuel tank upper frame; 152. Fuel tank lower frame; 153. Fuel tank; 154. Built-in refueling port; 155. Built-in oil outlet and return port; 16. External oil inlet and return port; 17. Piston pump; 18. Second coupling. DETAILED DESCRIPTION

[0035] It should be noted that the following detailed descriptions are illustrative and are intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present application belongs.

[0036] like Figure 1-Figure 9 As shown, a diesel-driven oil-free screw air compressor includes an air compression and power system, an air intake silencer chamber 10, a heat dissipation component 13 box 1 and a control system 8, wherein the control system 8 is arranged on the box 1 and is electrically connected to the air compression and power system, and the box 1 includes a left heat dissipation compartment 102, a main compartment 101 and a right heat dissipation compartment 103 arranged in sequence; the air compression and power system is arranged in the main compartment 101, and the air compression and power system includes a diesel-driven engine 2, an air compressor main engine 3, a first coupling 7, an intake valve And an air filter assembly 4, the diesel-driven engine 2 and the air compressor main engine 3 are connected through a first coupling 7, a connecting plate 6 is arranged at the connection position, the air filter assembly 4 is connected to the diesel-driven engine 2 and the air compressor main engine 3 through pipelines, the intake valve is arranged on the pipeline between the air compressor main engine 3 and the air filter assembly 4, the other end of the air filter assembly 4 is connected to the intake silencer chamber 10 in the right heat dissipation cabin 103, and obtains natural state air from the outside; the heat dissipation assembly 13 is arranged in the left heat dissipation cabin 102 and the right heat dissipation cabin 103.

[0037] like Figure 1 and Figure 2 As shown, the heat dissipation assembly 13 includes a hydraulic motor 131, a fan 132, a fan bracket 133 and a heat sink group. The hydraulic motor 131 is fixed to the inner upper surface of the left heat dissipation compartment 102 and the right heat dissipation compartment 103. The other side of the diesel-driven engine 2 is connected to the plunger pump 17 through the second coupling 18. The operation of the diesel-driven engine 2 drives the plunger pump 17 to work at the same time. The plunger pump 17 is connected to the hydraulic oil tank at one end of the oil pipe and connected to the hydraulic motor 131 at the other end. The plunger pump 17 provides power for the hydraulic motor 131. The hydraulic motor 131 and the fan 132 The rotary connection allows the plunger pump 17 to output an adjustable hydraulic pressure, thereby achieving adjustment of the fan 132. The hydraulic motor 131 is connected to the hydraulic oil tank for oil return via an oil pipe, and the hydraulic oil is used in a closed circulation. The fan bracket 133 is fixed on the side walls of the left heat dissipation compartment 102 and the right heat dissipation compartment 103. The fan 132 is arranged on the fan bracket 133, and the heat sink assembly is vertically arranged on the front and rear sides of the fan 132. The operation of the fan 132 forms a negative pressure zone in the internal space of the left heat dissipation compartment 102 and the right heat dissipation compartment 103, thereby accelerating the air flow rate and improving the cooling and heat dissipation effect.

[0038] like Figure 2 As shown, the heat sink group includes a first heat sink 111, a second heat sink 112, a third heat sink 113 and a fourth heat sink 114. The first heat sink 111 is arranged at the front of the left heat sink compartment 102. The first heat sink 111 has two sets of heat sink intervals built in it. The first heat sink interval is connected to the intake system of the diesel-driven engine 2, and the second heat sink interval is connected to the hydraulic system of the air compressor main unit 3; the second heat sink 112 is arranged at the rear of the left heat sink compartment 102, and the second heat sink 112 is connected to the heat sink component of the diesel-driven engine 2 through a pipeline; after the fourth heat sink 114 is arranged in the right heat sink compartment 103, the fourth heat sink 114 is respectively connected to the first compression zone outlet end and the second compressor inlet end of the air compressor main unit 3 through pipelines; the third heat sink 113 is arranged at the front of the right heat sink compartment 103, and the third heat sink 113 is connected to the outlet end of the second compression zone of the air compressor main unit 3 through a pipeline.

[0039] like Figure 1 , Figure 3-Figure 5As shown, the air intake silencer chamber 10 includes an air intake door plate 1001, a column 1003 and a top frame 1004. The air intake door plate 1001 is arranged on the front and back sides of the left heat dissipation compartment 102 and the right heat dissipation compartment 103. The air intake door plate 1001 is provided with a shutter 1002. The built-in gauze of the shutter 1002 can preliminarily filter impurities in the natural air. At the same time, a large amount of external air and the heat sink group are heat exchanged. After the heat exchange, the air is discharged from the top to achieve the effect of air cooling; the top frame 1004 is arranged above the air intake door plate 1001. The top frame 1004 located in the left heat dissipation compartment 102 is a frame structure. An air passage is arranged in the top frame 1004 of the chamber 103; the column 1003 is arranged on one side of the door axis of the air intake door plate 1001, the column 1003 located in the left heat dissipation chamber 102 is a frame structure, and the column 1003 located in the right heat dissipation chamber 103 is arranged with an upper space channel 1005 and a lower space channel 1007, the upper space channel 1005 is connected with the air passage of the upper top frame 1004 to supply air to the air filter assembly 4, the lower space channel 1007 is directly connected with the internal space of the main cabin 101, and the main cabin 101 is cooled by air heat exchange, and the air passage of the upper top frame 1004 is provided with sound-absorbing cotton.

[0040] like Figure 8 and Fig. 9As shown, the air filter assembly 4 includes an air filter housing 403 and an air filter element. An air filter air inlet 401 is arranged on the right vertical side plate of the air filter housing 403. A flange 402 is arranged at the air filter air inlet 401. A top frame air guide hole 1006 is arranged in the top frame 1004 located in the right heat dissipation compartment 103. The top frame air guide hole 1006 is connected to the air filter air inlet 401 through bolts and the flange 402. The air passes through the louver 1002, the upper air passage of the column 1003 in turn. The air filter assembly 4 is entered through the air channel, the top frame 1004 air channel, the top frame air guide hole 1006 and the air filter inlet 401. Two groups of air filter elements are respectively arranged on the two oblique sides above the air filter housing 403, totaling four groups of air filter elements, which effectively avoids the blockage of one group of air filter elements affecting the normal operation of the air filter assembly 4. A quick-open blind plate 404 is arranged outside the air filter element, and the operator can quickly open the air filter housing 403 to clean or replace the filter element. A filtered gas collection chamber 40 is arranged inside the air filter housing 403. 5. The air filtered by the air filter is temporarily stored in the filtered gas collection chamber 405 for use in the operation of the equipment. A first air outlet 407 and a second air outlet 408 are respectively arranged above the air filter housing 403. The first air outlet 407 is connected to the diesel-driven engine 2 through a pipeline to provide air for the operation of the diesel-driven engine 2. The second air outlet 408 is connected to the intake valve through a pipeline to provide air to be compressed for the air compressor host 3. An air pressure sensor 406 is arranged in the air filter housing 403. The air pressure sensor 406 is electrically connected to the control system 8. The air pressure sensor 406 detects the air flow pressure inside the air filter assembly 4 in real time. When the air filter is blocked, the information is fed back to the control system 8 in time, so that the staff can replace or clean the air filter in time. Silence cotton is installed inside the air filter housing 403 to reduce the noise of the equipment operation. At the same time, silence cotton is installed on the gas pipeline and the air intake silencer chamber 10 inside the equipment, which also has the effect of reducing noise.

[0041] A partition 9 is arranged between the left heat dissipation compartment 102 , the main compartment 101 and the right heat dissipation compartment 103 , a muffler box 902 is arranged inside the partition 9 , and air holes 901 are arranged on both sides of the partition 9 .

[0042] like Figure 5-Figure 7As shown, a fuel tank assembly 15 is arranged below the box body 1, and the fuel tank assembly 15 is connected to the diesel-driven engine 2 through an oil pipe. The fuel tank assembly 15 includes an upper fuel tank frame 151, a lower fuel tank frame 152 and a fuel tank 153. The fuel tank 153 is arranged between the upper fuel tank frame 151 and the lower fuel tank frame 152. A built-in refueling port 154 and a built-in oil outlet and return port 155 are arranged above the upper fuel tank frame 151. The built-in refueling port 154 is connected to the fuel tank 153 through an oil pipe, one end of the built-in oil outlet and return port 155 is connected to the fuel tank 153 through an oil pipe, and the other end of the built-in oil outlet and return port 155 is connected to the diesel-driven engine 2 through an oil pipe.

[0043] An external oil inlet and return port 16 is arranged on the left side of the box body 1, and the external oil inlet and return port 16 is connected to the internal oil outlet and return port 155 through an oil pipe, and a three-way valve is arranged at the connection position; an external refueling port 5 is arranged on the front side of the box body 1, and the external refueling port 5 is connected to the internal refueling port 154 through an oil pipe.

[0044] like Figure 3-Figure 5 As shown, an equipment air outlet 12 is arranged on the side of the box body 1, and the equipment air outlet 12 is connected to the air outlet end of the third heat sink 113 through a pipeline to discharge the air compressed by the equipment; an engine exhaust port 14 is arranged above the box body 1, and the engine exhaust port 14 is connected to the diesel-driven engine 2 to discharge the exhaust gas generated by the diesel-driven engine 2.

[0045] In the description of the present invention, the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "vertical", "horizontal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the purpose of describing the present invention rather than requiring the present invention to be constructed or operated in a specific position, and therefore should not be construed as limiting the present invention. The terms "connected" and "connected" in the present invention should be understood in a broad sense, for example, it can be a connection or a detachable connection; it can be a direct connection or an indirect connection through an intermediate component. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0046] The above is the preferred operation mode of the present invention, and the description of the specific operation mode is only used to better understand the concept of the present invention. For ordinary technicians in this technical field, several improvements or equivalent substitutions can be made according to the principles of the present invention, and these improvements or equivalent substitutions are also considered to fall within the protection scope of the present invention.

Claims

1. A diesel-driven oil-free screw air compressor, comprising an air compression and power system, an air intake silencer chamber (10), a heat dissipation assembly (13), a housing (1) and a control system (8), wherein the control system (8) is arranged on the housing (1) and is electrically connected to the air compression and power system, and is characterized in that: The housing (1) comprises a left heat dissipation compartment (102), a main compartment (101) and a right heat dissipation compartment (103) which are arranged in sequence; the air compression and power system is arranged in the main compartment (101); the air compression and power system comprises a diesel-driven engine (2), an air compressor main unit (3), a first coupling (7), an intake valve and an air filter assembly (4); the diesel-driven engine (2) and the air compressor main unit (3) are connected via the first coupling (7); a connecting plate (6) is arranged at the connection position; the air filter assembly (4) is respectively connected to the diesel-driven engine (2) and the air compressor main unit (3) via pipelines; the intake valve is arranged on the pipeline between the air compressor main unit (3) and the air filter assembly (4); the other end of the air filter assembly (4) is connected to an intake silencer chamber (10) in the right heat dissipation compartment (103); the heat dissipation assembly (13) is arranged in the left heat dissipation compartment (102) and the right heat dissipation compartment (103).

2. A diesel-driven oil-free screw air compressor according to claim 1, characterized in that: The heat dissipation assembly (13) comprises a hydraulic motor (131), a fan (132), a fan bracket (133) and a heat sink assembly. The hydraulic motor (131) is fixed on the inner upper surface of the left heat dissipation compartment (102) and the right heat dissipation compartment (103). The other side of the diesel-driven engine (2) is connected to a plunger pump (17) through a second coupling (18). The plunger pump (17) is connected to a hydraulic oil tank at one end through an oil pipe and connected to the hydraulic motor (131) at the other end. The hydraulic motor (131) is rotationally connected to the fan (132). The hydraulic motor (131) is connected to the hydraulic oil tank through an oil pipe for oil return. The fan bracket (133) is fixed on the side walls of the left heat dissipation compartment (102) and the right heat dissipation compartment (103). The fan (132) is arranged on the fan bracket (133). The heat sink assembly is vertically arranged on the front and rear sides of the fan (132).

3. A diesel-driven oil-free screw air compressor according to claim 2, characterized in that: The heat sink group comprises a first heat sink (111), a second heat sink (112), a third heat sink (113) and a fourth heat sink (114); the first heat sink (111) is arranged at the front of the left heat sink compartment (102); the first heat sink (111) has two heat sink sections built in it; the first heat sink section is connected to the air intake system of the diesel engine (2), and the second heat sink section is connected to the hydraulic system of the air compressor main engine (3); the second heat sink (112) is arranged at the rear of the left heat sink compartment (102); The second heat sink (112) is connected to a heat sink component of a diesel engine (2) through a pipeline; after the fourth heat sink (114) is arranged inside the right heat sink compartment (103), the fourth heat sink (114) is respectively connected to the air outlet end of the first compression zone and the air inlet end of the second compressor of the air compressor main unit (3) through pipelines; the third heat sink (113) is arranged at the front inside the right heat sink compartment (103), and the third heat sink (113) is connected to the air outlet end of the second compression zone of the air compressor main unit (3) through a pipeline.

4. A diesel-driven oil-free screw air compressor according to claim 1, characterized in that: The air intake silencer chamber (10) comprises an air intake door plate (1001), a column (1003) and a top frame (1004); the air intake door plate (1001) is arranged on the front and back sides of the left heat dissipation chamber (102) and the right heat dissipation chamber (103); a shutter (1002) is arranged on the air intake door plate (1001); the top frame (1004) is arranged above the air intake door plate (1001); the top frame (1004) located in the left heat dissipation chamber (102) is a frame structure; and an air channel is arranged in the top frame (1004) located in the right heat dissipation chamber (103); The column (1003) is arranged on one side of the door axis of the air intake door plate (1001); the column (1003) located in the left heat dissipation compartment (102) is a frame structure; the column (1003) located in the right heat dissipation compartment (103) is arranged with an upper space channel (1005) and a lower space channel (1007); the upper space channel (1005) is connected to the air channel of the upper top frame (1004); the lower space channel (1007) is directly connected to the internal space of the main compartment (101); and sound-absorbing cotton is arranged in the air channel of the upper top frame (1004).

5. A diesel-driven oil-free screw air compressor according to claim 4, characterized in that: The air filter assembly (4) comprises an air filter housing (403) and an air filter element. An air filter air inlet (401) is arranged on a right vertical side plate of the air filter housing (403). A flange (402) is arranged at the air filter air inlet (401). A top frame air guide hole (1006) is arranged in a top frame (1004) located in the right heat dissipation compartment (103). The top frame air guide hole (1006) is connected to the air filter air inlet (401) via bolts and the flange (402). Two groups of air filter elements are arranged on the upper two oblique sides of the air filter housing (403). The air filter element is provided with a flange (402) outside. A quick-open blind plate (404) is provided in the air filter housing (403), a filtered gas collection chamber (405) is provided in the air filter housing (403), a first air outlet (407) and a second air outlet (408) are provided above the air filter housing (403), the first air outlet (407) is connected to the diesel-driven engine (2) through a pipeline, the second air outlet (408) is connected to the intake valve through a pipeline, an air pressure sensor (406) is provided in the air filter housing (403), the air pressure sensor (406) is electrically connected to the control system (8), and a sound-absorbing cotton is installed inside the air filter housing (403).

6. A diesel-driven oil-free screw air compressor according to claim 1, characterized in that: A partition (9) is arranged between the left heat dissipation compartment (102), the main compartment (101) and the right heat dissipation compartment (103), a muffler box (902) is arranged inside the partition (9), and air holes (901) are arranged on both sides of the partition (9).

7. A diesel-driven oil-free screw air compressor according to claim 1, characterized in that: An oil tank assembly (15) is arranged below the box body (1), and the oil tank assembly (15) is connected to the diesel-driven engine (2) through an oil pipe. The oil tank assembly (15) comprises an oil tank upper frame (151), an oil tank lower frame (152) and an oil tank (153). The oil tank (153) is arranged between the oil tank upper frame (151) and the oil tank lower frame (152). A built-in oil filling port (154) and a built-in oil outlet and return port (155) are arranged above the oil tank upper frame (151). The built-in oil filling port (154) is connected to the oil tank (153) through an oil pipe, one end of the built-in oil outlet and return port (155) is connected to the oil tank (153) through an oil pipe, and the other end of the built-in oil outlet and return port (155) is connected to the diesel-driven engine (2) through an oil pipe.

8. A diesel-driven oil-free screw air compressor according to claim 7, characterized in that: An external oil inlet and return port (16) is arranged on the left side of the box body (1), and the external oil inlet and return port (16) is connected to the internal oil outlet and return port (155) via an oil pipe, and a three-way valve is arranged at the connection position; an external oil filling port (5) is arranged on the front side of the box body (1), and the external oil filling port (5) is connected to the internal oil filling port (154) via an oil pipe.

9. A diesel-driven oil-free screw air compressor according to claim 3, characterized in that: An equipment air outlet (12) is arranged on the side of the box body (1), and the equipment air outlet (12) is connected to the air outlet end of the third heat sink (113) through a pipeline; an engine exhaust port (14) is arranged above the box body (1), and the engine exhaust port (14) is connected to the diesel-driven engine (2).

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